Is the Audi S4 reliable?

The Audi S4 has an average MOT pass rate of 87% across 14 years, based on 2,276 tests in 2024. That's 5 points above the national average of 82%. The most reliable year is 2013 with a 94% pass rate.

Which year Audi S4 is best?

The 2013 Audi S4 has the highest MOT pass rate at 94%, while the 2006 model has the lowest at 78%. There's a 16 percentage point spread between the best and worst years.

Audi S4 Running Costs, MOT Pass Rates & Reliability

Audi S4

Reliability, running costs, and MOT data across 14 years from 2,276 real MOT tests.

Avg Pass Rate

87%

Total Tests

2,276

Best Year

2013 (94%)

Years Covered

How reliable is the Audi S4?

vs national average+5% (82% avg)

vs Audi brand average-3% (90% avg)

Best to worst year spread16 percentage points

Reliability trendImproving over years

Audi S4 by Year

Year	Pass Rate	Tests	Avg Mileage
2017	94%	69	57,456 mi
2015	92%	39	65,685 mi
2014	86%	170	83,424 mi
2013	94%	189	90,972 mi
2012	92%	78	82,804 mi
2011	87%	277	94,642 mi
2010	90%	277	101,140 mi
2009	91%	216	92,422 mi
2007	82%	126	83,877 mi
2006	78%	263	110,513 mi
2005	80%	169	99,307 mi
2004	81%	202	99,762 mi
2000	85%	59	152,811 mi
1999	85%	142	161,691 mi

Checking a specific Audi S4?

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About the Audi S4

The Audi S4 has been tested 2,276 times in 2024 MOT data across 14 model years (1999 to 2017), with an average pass rate of 87%. That's slightly above the national average of 82%. Available as petrol.

Best and Worst Years

The 2013 model is the most reliable with a 94% pass rate from 189 tests. The 2006 model has the lowest at 78%. With a 16 point spread, choosing the right year makes a big difference to reliability.

Reliability Trend

Newer AUDI S4s show better MOT pass rates than older ones, with an average improvement of 9 percentage points.

Mileage Across Years

The oldest model in our data (1999) averages 161,691 miles, while the newest (2017) averages 57,456 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.

Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.